An exhibit of Russian books, calendars, dolls, records, and other artistic items is on display today until 8 p.m. in the Graduate Lounge on the West Range. The exhibit, which began yesterday, is a sample of the inventory of a Washington, D. C. enterprise owned by Victor Kamkin, which deals with Slavic imports and specializes in Russian products. The main part of the display here consists of printed articles, including books on the Soviet Union as a country, its literature, arts, and languages. Recordings of Russian folksongs, also on sale, provide appropriate musical mood.